EP0345858A1 - Process and device for picking-up and bringing together from two piles the front and the rear piece of a T-shirt - Google Patents

Process and device for picking-up and bringing together from two piles the front and the rear piece of a T-shirt Download PDF

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Publication number
EP0345858A1
EP0345858A1 EP89201348A EP89201348A EP0345858A1 EP 0345858 A1 EP0345858 A1 EP 0345858A1 EP 89201348 A EP89201348 A EP 89201348A EP 89201348 A EP89201348 A EP 89201348A EP 0345858 A1 EP0345858 A1 EP 0345858A1
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EP
European Patent Office
Prior art keywords
gripping
layers
plates
assemblies
grippers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89201348A
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German (de)
French (fr)
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EP0345858B1 (en
Inventor
Patrick Rouleau
Alain Rouleau
Jean-Pierre Touret
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Individual
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Individual
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Priority to AT89201348T priority Critical patent/ATE78995T1/en
Publication of EP0345858A1 publication Critical patent/EP0345858A1/en
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    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H43/00—Other methods, machines or appliances
    • A41H43/02—Handling garment parts or blanks, e.g. feeding, piling, separating or reversing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S112/00—Sewing
    • Y10S112/03—Pneumatic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/937—Textile
    • Y10S493/938—Apparel

Definitions

  • the invention relates to a method for pairing at least two flexible layers, in particular a back panel and a front panel of an article such as a T-shirt in the textile and hosiery industry.
  • This invention extends to a device for pairing at least two flexible layers implementing this method.
  • the present invention aims to remedy these drawbacks and proposes to provide a method and a device, making it possible to grasp and pair flexible layers fully automatically, without any manual intervention.
  • the method according to the invention consists:
  • This process therefore makes it possible, entirely automatically, to grasp two layers, to pair them and to deposit them on a depositing member on which the operator only has to grasp these layers to sew them along their edges .
  • the stacks are placed on two inclined plates arranged in an open dihedral with their lower edge facing each other, and the gripping assemblies are moved vertically above said lower edges.
  • the layers are thus gripped along one of their edges and lifted in a direction making an acute angle relative to the surface of said layers.
  • the layers are maintained on the plates, at the lower edges of the latter, by a simple pressure allowing the sliding and gripping of the upper layer, and one blows an air flow towards said lower edges.
  • the layers are preferably grasped by means of grippers provided with a gripping face and moving in synchronism, and said grippers are made to pivot, at the end of the upward translation of the gripping assemblies, so as to have their gripping face facing and bring the layers seized substantially edge to edge.
  • the invention extends to a device for pairing at least two flexible layers, in particular a back panel and a front panel of an article such as than a T-shirt in the textile and hosiery industry, characterized in that it comprises in combination:
  • a movable depositing member disposed in an intermediate plane between the plates and the gripping assemblies in the high position
  • the machine shown in Figures 1 to 3 is intended to pair two flexible layers such as a front panel and a back panel of a T-shirt.
  • This machine comprises, firstly, a support frame 1 carrying two fixed plates 2, 3 intended to each carry a stack of layers. These plates 2, 3 are slightly inclined towards one another and arranged in an open dihedral with their lower edge facing each other.
  • They are composed of a lower part 2a, 3a of short length, horizontal, and of an upper part 2b, 3b inclined at an angle of the order of 15 to 25 degrees relative to the horizontal.
  • Each plate 2, 3 further comprises a longitudinal edge provided with a positioning flank 4 for stacking layers, and members for holding this stack.
  • These holding members are constituted, on the one hand, by fastening strips 5 arranged on the plate so as to avoid sliding of the stack and, on the other hand, by bars 6 arranged directly above the lower edge of the plates and vertically guided to pinch their weight with a longitudinal edge of the layers.
  • two gripper bars 7 adapted to move vertically between a high position and a low gripping position.
  • Each of these bars 7 carries two grippers 8 as described in patent n ° 84.04804 or the certificate of addition n ° 86.02951 or the request for certificate of addition n ° 88.06752, separated from one another so as to come and grasp each layer near its angle.
  • the position of one of these grippers 8 is adjustable along the bar 7 to allow operating on different widths of layers.
  • the two gripper bars 7 are carried at one of their ends by a vertical support plate 9 slidably mounted along two rods vertical guide 10.
  • This support plate 9 is itself fixed to the rod 11a of a pneumatic cylinder 11 disposed vertically and adapted to move the gripper bars 7 between their high and low positions.
  • pivoting means are adapted to pivot the gripper bars 7 about their longitudinal axis so as to allow the grippers 8 to be positioned either face to face, their gripping face being located in the immediate vicinity, or oriented towards the bottom, their gripping face facing the plates 2, 3.
  • these pivoting means comprise, firstly, two cams 12 each secured to the end of a gripper holder bar 7 and arranged against the rear face of the support plate 9.
  • Each cam is associated with a spring 13 adapted to maintain it in a position corresponding to a downward orientation of the gripping faces of the grippers 8, when the gripper carrier bars 7 are in the low position or during the ascent and descent (FIG. 5).
  • each cam 12 comes into contact with a fixed upper stop plate 14 which automatically causes its rotation by a quarter of a turn and consequently the rotation of the gripper bars 7 (FIG. 4).
  • the pairing machine also includes a deposit bar 15 arranged transversely above the plates 2, 3 and adapted to retract above a plate 3 or come above the other plate 2 in the deposit position. , along a trajectory where it comes into contact with the captured layers vertically attached to the grippers 8.
  • This removal bar 15 is fixed towards one of its ends, on the end of a branch 16a of an L-shaped arm 16 whose other branch 16b is articulated, on the one hand, in its middle part, on the rod 17a of a pneumatic cylinder 17 whose body 17b is articulated on the support frame 1 and, on the other hand, towards its end, on the support frame 1.
  • This pairing machine also comprises a blowing ramp 18 arranged between the plates 2, 3 at a low height above these.
  • This ramp 18 is intended to blow towards the two layers gripped when the latter are raised, so as to eliminate any ripples that may occur.
  • this pairing machine includes a central unit programmed to operate it according to the sequences illustrated in Figures 6a to 6h.
  • the gripper carrier bars 7 are in the high position, the grippers 8 being automatically face to face, in the removal position.
  • the removal bar 15 is in the active position above one of the plates 2, within reach of the operator who can grasp the paired layers.
  • the depositing bar 15 retracts the other plate 3, passing beneath the gripper bars 7 (FIG. 6b).
  • gripper bars 7 are then subjected to a downward movement, during which the grippers 8 automatically rotate by a quarter turn, until these grippers come into contact with the layers of fabric and automatically grip the upper layer of the way described in the French patent n ° 84.04804 or the certificate of addition n ° 86.02951 or the request for certificate of addition n ° 88.06752.
  • the gripper bars 7 are then brought back to their initial position (FIG. 6d), by lifting each layer in a direction making an acute angle of 65 to 75 degrees relative to the surface of the stacked layers, by virtue of the inclination plates 2, 3.
  • blowing ramp 15 blowing towards the gripped layers when they are raised, makes it possible to eliminate the risks of possible ripples.
  • the depositing bar 15 then returns to the other plate 2 by coming into contact with the gripped layers vertically attached to the grippers 8, and by sliding along these to an intermediate position of their height (FIG. 6f).
  • grippers 8 are actuated, as described in French patent n ° 84.04804 or the certificate of addition n ° 86.02951 or the request for certificate of addition n ° 88.06752, so as to loosen the layers which are found straddling the drop bar 15, perfectly matched ( Figure 6g).

Landscapes

  • Textile Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Sewing Machines And Sewing (AREA)
  • Outer Garments And Coats (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Discharge By Other Means (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)
  • Details Of Garments (AREA)
  • Pile Receivers (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

The invention relates to a process and an apparatus for pairing up at least two flexible sheets, in particular the front and rear panels of an article such as a T-shirt. The process comprises forming a stack of each type of sheets and arranging these stacks on two plates (2, 3), picking up along a line, at least one sheet of each stack by means of two gripper assemblies (7, 8) displaceable above the plates (2, 3) between a lower sheet gripping position and an upper position in which the gripped sheets are suspended above the plates, moving a deposit member (15) above the plates (2, 3) along a trajectory in which the deposit member comes into contact with the gripped sheets while sliding therealong to a position intermediate their height, and actuating the gripper assemblies (7, 8) so as to release the sheets on the deposit member (15).

Description

L'invention concerne un procédé pour appairer au moins deux couches souples, notamment un panneau de dos et un panneau de devant d'un article tel qu'un tee-shirt dans l'industrie textile et de la bonneterie. Cette invention s'étend à un dispositif d'appairage d'au moins deux couches souples mettant en oeuvre ce procédé.The invention relates to a method for pairing at least two flexible layers, in particular a back panel and a front panel of an article such as a T-shirt in the textile and hosiery industry. This invention extends to a device for pairing at least two flexible layers implementing this method.

A l'heure actuelle, le dos et le devant des panneaux de tee-shirt sont traditionnellement appairés de façon manuelle en vue d'être cousus. Cette opération d'appairage est longue, délicate et pénible car les panneaux sont de grandes dimensions, les couches accrochent les unes aux autres sur les empilages et ont tendance à onduler lorsqu'on les saisit. L'opératrice est donc obligée de saisir les panneaux, lever les bras, et secouer ces panneaux afin de les déployer et de les superposer à peu près correctement.Today, the back and front of T-shirt panels are traditionally paired manually to be sewn. This pairing operation is long, delicate and painful because the panels are large, the layers hang on to each other on the stacks and tend to undulate when they are grasped. The operator is therefore obliged to grasp the panels, raise their arms, and shake these panels in order to deploy and superimpose them more or less correctly.

La présente invention vise à remédier à ces inconvénients et se propose de fournir un procédé et un dispositif, permettant de saisir et d'appairer des couches souples de façon entièrement automatique, sans aucune intervention manuelle.The present invention aims to remedy these drawbacks and proposes to provide a method and a device, making it possible to grasp and pair flexible layers fully automatically, without any manual intervention.

A cet effet, le procédé selon l'invention consiste :To this end, the method according to the invention consists:

- à former un empilage de chaque type de couches et à disposer ces empilages sur deux plateaux,- to form a stack of each type of layers and to arrange these stacks on two plates,

- à saisir, le long d'une ligne, au moins une couche de chaque empilage au moyen de deux ensembles de préhension se déplaçant, chacun au-dessus d'un plateau, entre une position basse de préhension des couches et une position haute où les couches saisies sont suspendues au-dessus des plateaux,- to grasp, along a line, at least one layer of each stack by means of two gripping assemblies moving, each above a tray, between a low position for gripping the layers and a high position where the seized layers are suspended above the trays,

- à déplacer un organe de dépose au-dessus des plateaux à une hauteur intermédiaire entre lesdits plateaux et les ensembles de préhension en position haute, et selon une trajectoire où ledit organe de dépose vient en contact avec les couches saisies en glissant le long de ces dernières jusqu'à une position intermédiaire de leur hauteur,- moving a depositing member above the plates at an intermediate height between said plates and the gripping assemblies in the high position, and along a trajectory where said depositing member comes into contact with the captured layers by sliding along them to an intermediate position of their height,

- et à actionner les ensembles de préhension de façon à relâcher les couches sur l'organe de dépose.- And to actuate the gripping assemblies so as to release the layers on the depositing member.

Ce procédé permet donc, de façon entièrement automatique, de saisir deux couches, de les appairer et de les déposer sur un organe de dépose sur lequel l'opératrice n'a plus qu'à saisir ces couches pour les coudre le long de leurs bords.This process therefore makes it possible, entirely automatically, to grasp two layers, to pair them and to deposit them on a depositing member on which the operator only has to grasp these layers to sew them along their edges .

Selon un mode de mise en oeuvre préférentiel, on dispose les empilages sur deux plateaux inclinés agencés selon un dièdre ouvert avec leur bord inférieur en regard, et l'on déplace les ensembles de préhension à l'aplomb desdits bords inférieurs.According to a preferred embodiment, the stacks are placed on two inclined plates arranged in an open dihedral with their lower edge facing each other, and the gripping assemblies are moved vertically above said lower edges.

Les couches sont ainsi saisies le long d'un de leur bord et soulevées selon une direction faisant un angle aigu par rapport à la surface desdites couches. Ces dispositions permettent de supprimer les risques d'entraînement des couches inférieures par frottement, car le tissu est non pas tiré tangentiellement aux autres couches, mais au contraire amené à se dérouler au fil de l'ascension des ensembles de préhension.The layers are thus gripped along one of their edges and lifted in a direction making an acute angle relative to the surface of said layers. These provisions make it possible to eliminate the risks of entrainment of the lower layers by friction, because the fabric is not pulled tangentially to the other layers, but on the contrary caused to unwind as the gripping assemblies rise.

Par ailleurs, selon une autre caractéristique de l'invention, l'on maintient les couches sur les plateaux, au niveau des bords inférieurs de ces derniers, par une simple pression autorisant le glissement et la saisie de la couche supérieure, et l'on souffle un flux d'air vers lesdits bords inférieurs. Cette disposition permet en effet d'éliminer les ondulations éventuelles des couches sous-jacentes de la couche saisie.Furthermore, according to another characteristic of the invention, the layers are maintained on the plates, at the lower edges of the latter, by a simple pressure allowing the sliding and gripping of the upper layer, and one blows an air flow towards said lower edges. This arrangement indeed makes it possible to eliminate any undulations of the underlying layers of the captured layer.

En outre, l'on saisit préférentiellement les couches au moyen de préhenseurs dotés d'une face de préhension et se déplaçant en synchronisme, et l'on fait pivoter lesdits préhenseurs, en fin de translation ascendante des ensembles de préhension, de façon à disposer leur face de préhension en regard et amener les couches saisies sensiblement bord à bord.In addition, the layers are preferably grasped by means of grippers provided with a gripping face and moving in synchronism, and said grippers are made to pivot, at the end of the upward translation of the gripping assemblies, so as to have their gripping face facing and bring the layers seized substantially edge to edge.

L'invention s'étend à un dispositif d'appairage d'au moins deux couches souples, notamment d'un panneau de dos et d'un panneau de devant d'un article tel qu'un tee-shirt dans l'industrie textile et de la bonneterie, caractérisé en ce qu'il comprend en combinaison :The invention extends to a device for pairing at least two flexible layers, in particular a back panel and a front panel of an article such as than a T-shirt in the textile and hosiery industry, characterized in that it comprises in combination:

- deux plateaux dotés de moyens de maintien et de positionnement d'un empilage de couches,- two trays provided with means for holding and positioning a stack of layers,

- deux ensembles de préhension associés à des moyens d'actionnement et disposés chacun au-dessus d'un plateau, lesdits ensembles étant adaptés pour saisir au moins une couche de l'empilage disposé sur ledit plateau et pour relâcher cette couche sur commande,two gripping assemblies associated with actuating means and each arranged above a tray, said assemblies being adapted to grip at least one layer of the stack placed on said tray and to release this layer on command,

- des moyens d'entraînement en translation des ensembles de préhension adaptés pour déplacer lesdits ensembles au-dessus des plateaux, entre une position basse de préhension des couches et une position haute où ils sont disposés à une hauteur prédéterminée au-dessus desdits plateaux,means for driving in translation the gripping assemblies adapted to move said assemblies above the plates, between a low position for gripping the layers and a high position where they are arranged at a predetermined height above said plates,

- un organe de dépose mobile disposé dans un plan intermédiaire entre les plateaux et les ensembles de préhension en position haute,a movable depositing member disposed in an intermediate plane between the plates and the gripping assemblies in the high position,

- des moyens de déplacement de l'organe de dépose mobile aptes à le déplacer au-dessus des plateaux entre une position, dite escamotée où il est positionné au-dessus d'un plateau et une position dite de dépose où il est positionné au-dessus du second plateau.- Means for moving the movable depositing member able to move it above the plates between a position, called retracted where it is positioned above a plate and a position called deposit where it is positioned above- above the second tray.

D'autres caractéristiques, buts et avantages de l'invention se dégageront de la description détaillée qui suit, en référence aux dessins annexés qui en représentent, à titre d'exemple non limitatif, un mode de réalisation préférentiel. Sur ces dessins qui font partie intégrante de la présente description :

  • - la figure 1 est une vue en perspective d'un dispositif conforme à l'invention, une partie du capotage étant arrachée,
  • - la figure 2 en est une coupe longitudinale par un plan vertical A-A,
  • - la figure 3 en est une vue de derrière,
  • - les figures 4 et 5 sont des vues en perspective partielles des moyens de pivotement des bras porte-préhenseurs, dans chacun de leurs deux états de fonctionnement,
  • - les figures 6a à 6h sont des schémas illustrant le déroulement d'un cycle d'appairage de deux couches.
Other characteristics, objects and advantages of the invention will emerge from the detailed description which follows, with reference to the appended drawings which represent, by way of nonlimiting example, a preferred embodiment. On these drawings which form an integral part of this description:
  • FIG. 1 is a perspective view of a device according to the invention, part of the cowling being cut away,
  • FIG. 2 is a longitudinal section through a vertical plane AA,
  • - Figure 3 is a rear view,
  • FIGS. 4 and 5 are partial perspective views of the means for pivoting the gripper-carrying arms, in each of their two operating states,
  • - Figures 6a to 6h are diagrams illustrating the progress of a pairing cycle of two layers.

La machine représentée aux figures 1 à 3 est destinée à appairer deux couches souples telles qu'un panneau de devant et un panneau de dos d'un tee-shirt.The machine shown in Figures 1 to 3 is intended to pair two flexible layers such as a front panel and a back panel of a T-shirt.

Cette machine comprend, en premier lieu, un châssis-support 1 portant deux plateaux 2, 3 fixes destinés à porter chacun un empilage de couches. Ces plateaux 2, 3 sont légèrement inclinés l'un vers l'autre et disposés selon un dièdre ouvert avec leur bord inférieur en regard.This machine comprises, firstly, a support frame 1 carrying two fixed plates 2, 3 intended to each carry a stack of layers. These plates 2, 3 are slightly inclined towards one another and arranged in an open dihedral with their lower edge facing each other.

Ils sont composés d'une partie inférieure 2a, 3a de faible longueur, horizontale, et d'une partie supérieure 2b, 3b inclinée d'un angle de l'ordre de 15 à 25 degrés par rapport à l'horizontale.They are composed of a lower part 2a, 3a of short length, horizontal, and of an upper part 2b, 3b inclined at an angle of the order of 15 to 25 degrees relative to the horizontal.

Chaque plateau 2, 3 comporte, en outre, un bord longitudinal doté d'un flanc de positionnement 4 de l'empilage de couches, et des organes de maintien de cet empilage. Ces organes de maintien sont constitués, d'une part, par des bandes d'accrochage 5 disposées sur le plateau de façon à éviter un glissement de l'empilage et, d'autre part, par des barrettes 6 disposées à l'aplomb du bord inférieur des plateaux et guidées verticalement pour réaliser un pincement par leur poids d'un bord longitudinal des couches.Each plate 2, 3 further comprises a longitudinal edge provided with a positioning flank 4 for stacking layers, and members for holding this stack. These holding members are constituted, on the one hand, by fastening strips 5 arranged on the plate so as to avoid sliding of the stack and, on the other hand, by bars 6 arranged directly above the lower edge of the plates and vertically guided to pinch their weight with a longitudinal edge of the layers.

Au-dessus du bord inférieur de ces plateaux sont disposées deux barres porte-préhenseurs 7 adaptées pour se déplacer verticalement entre une position haute et une position basse de préhension.Above the lower edge of these plates are arranged two gripper bars 7 adapted to move vertically between a high position and a low gripping position.

Chacune de ces barres 7 porte deux préhenseurs 8 tels que décrits dans le brevet n° 84.04804 ou le certificat d'addition n° 86.02951 ou la demande de certificat d'addition n° 88.06752, écartés l'un de l'autre de façon à venir saisir chaque couche au voisinage de son angle. La position d'un de ces préhenseurs 8 est ajustable le long de la barre 7 pour permettre d'opérer sur différentes largeurs de couches.Each of these bars 7 carries two grippers 8 as described in patent n ° 84.04804 or the certificate of addition n ° 86.02951 or the request for certificate of addition n ° 88.06752, separated from one another so as to come and grasp each layer near its angle. The position of one of these grippers 8 is adjustable along the bar 7 to allow operating on different widths of layers.

Les deux barres porte-préhenseurs 7 sont portées au niveau d'une de leur extrémité par une plaque-­support verticale 9 montée coulissante le long de deux tiges de guidage verticales 10. Cette plaque-support 9 est elle-même fixée sur la tige 11a d'un vérin pneumatique 11 disposé verticalement et adapté pour déplacer les barres porte-­préhenseurs 7 entre leurs positions haute et basse.The two gripper bars 7 are carried at one of their ends by a vertical support plate 9 slidably mounted along two rods vertical guide 10. This support plate 9 is itself fixed to the rod 11a of a pneumatic cylinder 11 disposed vertically and adapted to move the gripper bars 7 between their high and low positions.

En outre, des moyens de pivotement sont adaptés pour faire pivoter les barres porte-préhenseurs 7 autour de leur axe longitudinal de façon à permettre de positionner les préhenseurs 8 soit face à face, leur face de préhension se situant à proximité immédiate, soit orientés vers le bas, leur face de préhension étant tournée vers les plateaux 2, 3.In addition, pivoting means are adapted to pivot the gripper bars 7 about their longitudinal axis so as to allow the grippers 8 to be positioned either face to face, their gripping face being located in the immediate vicinity, or oriented towards the bottom, their gripping face facing the plates 2, 3.

Tel que représenté aux figures 4 et 5, ces moyens de pivotement comprennent, en premier lieu, deux cames 12 solidaires chacune de l'extrémité d'une barre porte-­préhenseurs 7 et disposées contre la face arrière de la plaque-support 9. Chaque came est associée à un ressort 13 adapté pour la maintenir dans une position correspondant à une orientation vers le bas de faces de préhension des préhenseurs 8, lorsque les barres porte-préhenseurs 7 sont en position basse ou en cours de remontée et de descente (figure 5).As shown in Figures 4 and 5, these pivoting means comprise, firstly, two cams 12 each secured to the end of a gripper holder bar 7 and arranged against the rear face of the support plate 9. Each cam is associated with a spring 13 adapted to maintain it in a position corresponding to a downward orientation of the gripping faces of the grippers 8, when the gripper carrier bars 7 are in the low position or during the ascent and descent (FIG. 5).

Par contre, en fin de remontée, chaque came 12 vient en contact avec une plaque de butée supérieure fixe 14 qui entraîne automatiquement sa rotation d'un quart de tour et par conséquent la rotation des barres porte-­préhenseurs 7 (figure 4).On the other hand, at the end of the ascent, each cam 12 comes into contact with a fixed upper stop plate 14 which automatically causes its rotation by a quarter of a turn and consequently the rotation of the gripper bars 7 (FIG. 4).

La machine à appairer comporte également une barre de dépose 15 disposée transversalement au-dessus des plateaux 2, 3 et adaptée pour s'escamoter au-dessus d'un plateau 3 ou venir au-dessus de l'autre plateau 2 en position de dépose, selon une trajectoire où elle vient en contact avec les couches saisies accrochées verticalement aux préhenseurs 8.The pairing machine also includes a deposit bar 15 arranged transversely above the plates 2, 3 and adapted to retract above a plate 3 or come above the other plate 2 in the deposit position. , along a trajectory where it comes into contact with the captured layers vertically attached to the grippers 8.

Cette barre de dépose 15 est fixée vers une de ses extrémités, sur l'extrémité d'une branche 16a d'un bras 16 en forme de L dont l'autre branche 16b est articulée, d'une part, dans sa partie médiane, sur la tige 17a d'un vérin pneumatique 17 dont le corps 17b est articulé sur le châssis-­support 1 et, d'autre part, vers son extrémité, sur le châssis-support 1.This removal bar 15 is fixed towards one of its ends, on the end of a branch 16a of an L-shaped arm 16 whose other branch 16b is articulated, on the one hand, in its middle part, on the rod 17a of a pneumatic cylinder 17 whose body 17b is articulated on the support frame 1 and, on the other hand, towards its end, on the support frame 1.

Cette machine à appairer comporte par ailleurs une rampe de soufflage 18 disposée entre les plateaux 2, 3 à faible hauteur au-dessus de ceux-ci. Cette rampe 18 est destinée à souffler vers les deux couches saisies lorsque celles-ci sont soulevées, de façon à éliminer les éventuelles ondulations qui pourraient se produire.This pairing machine also comprises a blowing ramp 18 arranged between the plates 2, 3 at a low height above these. This ramp 18 is intended to blow towards the two layers gripped when the latter are raised, so as to eliminate any ripples that may occur.

En dernier lieu, cette machine à appairer comporte une unité centrale programmée pour l'actionner selon les séquences illustrées aux figures 6a à 6h.Finally, this pairing machine includes a central unit programmed to operate it according to the sequences illustrated in Figures 6a to 6h.

En fin de cycle, et tel que représenté à la figure 6a, les barres porte-préhenseurs 7 se trouvent en position haute, les préhenseurs 8 étant automatiquement face à face, en position de dépose. De plus, la barre de dépose 15 se trouve en position active au-dessus de l'un des plateaux 2, à portée de l'opératrice qui peut saisir les couches appairées.At the end of the cycle, and as shown in FIG. 6a, the gripper carrier bars 7 are in the high position, the grippers 8 being automatically face to face, in the removal position. In addition, the removal bar 15 is in the active position above one of the plates 2, within reach of the operator who can grasp the paired layers.

Au début du cycle, la barre de dépose 15 s'escamote versa l'autre plateau 3 en passant au-dessous des barres porte-préhenseurs 7 (figure 6b).At the start of the cycle, the depositing bar 15 retracts the other plate 3, passing beneath the gripper bars 7 (FIG. 6b).

Ces barres porte-préhenseurs 7 sont ensuite soumises à un mouvement descendant, au cours duquel les préhenseurs 8 pivotent automatiquement d'un quart de tour, jusqu'à ce que ces préhenseurs viennent au contact des couches de tissu et saisissent automatiquement la couche supérieure de la façon décrite dans le brevet français n° 84.04804 ou le certificat d'addition n° 86.02951 ou la demande de certificat d'addition n° 88.06752. Les barres porte-préhenseurs 7 sont ensuite amenées à remonter vers leur position initiale (figure 6d), en soulevant chaque couche selon une direction faisant un angle aigu de 65 à 75 degrés par rapport à la surface des couches empilées, grâce à l'inclinaison des plateaux 2, 3. Ainsi, tout risque d'entraînement des couches inférieures par frottement est supprimé, car le tissu est tiré, non pas tangentiellement aux autres couches, mais au contraire, amené à se dérouler au fil de l'ascension des préhenseurs 8.These gripper bars 7 are then subjected to a downward movement, during which the grippers 8 automatically rotate by a quarter turn, until these grippers come into contact with the layers of fabric and automatically grip the upper layer of the way described in the French patent n ° 84.04804 or the certificate of addition n ° 86.02951 or the request for certificate of addition n ° 88.06752. The gripper bars 7 are then brought back to their initial position (FIG. 6d), by lifting each layer in a direction making an acute angle of 65 to 75 degrees relative to the surface of the stacked layers, by virtue of the inclination plates 2, 3. Thus, any risk of entrainment of the lower layers by friction is eliminated, because the fabric is pulled, not tangentially to the other layers, but on the contrary, caused to unwind as the grippers rise 8.

Il est à noter en outre que la présence de la rampe de soufflage 15 soufflant vers les couches saisies lorsque celles-ci sont soulevées, permet d'éliminer les risques d'éventuelles ondulations.It should also be noted that the presence of the blowing ramp 15 blowing towards the gripped layers when they are raised, makes it possible to eliminate the risks of possible ripples.

En fin de remontée des barres porte-­préhenseurs 7, les cames 12 rentrent en contact avec la plaque de butée supérieure 14, entraînant une rotation de ces barres autour de leur axe, qui rapproche les deux couches saisies et les amène pratiquement bord à bord (figure 6e).At the end of the lifting of the gripper bars 7, the cams 12 come into contact with the upper stop plate 14, causing these bars to rotate about their axis, which brings the two gripped layers together and brings them practically edge to edge ( Figure 6e).

La barre de dépose 15 revient alors vers l'autre plateau 2 en rentrant en contact avec les couches saisies accrochées verticalement aux préhenseurs 8, et en glissant le long de celles-ci jusqu'à une position intermédiaire de leur hauteur (figure 6f).The depositing bar 15 then returns to the other plate 2 by coming into contact with the gripped layers vertically attached to the grippers 8, and by sliding along these to an intermediate position of their height (FIG. 6f).

En dernier lieu, les préhenseurs 8 sont actionnés, tel que décrit dans le brevet français n° 84.04804 ou le certificat d'addition n° 86.02951 ou la demande de certificat d'addition n° 88.06752, de façon à relâcher les couches qui se retrouvent à cheval sur la barre de dépose 15, parfaitement appairées (figure 6g).Finally, the grippers 8 are actuated, as described in French patent n ° 84.04804 or the certificate of addition n ° 86.02951 or the request for certificate of addition n ° 88.06752, so as to loosen the layers which are found straddling the drop bar 15, perfectly matched (Figure 6g).

Une opératrice peut alors saisir ces couches pour les coudre le long de leurs bords (figures 6h).An operator can then grasp these layers to sew them along their edges (Figures 6h).

Claims (13)

1/ - Procédé pour appairer au moins deux couches souples, notamment un panneau de dos et un panneau de devant d'un article tel qu'un tee-shirt dans l'industrie textile et de la bonneterie, caractérisé en ce qu'il consiste :
- à former un empilage de chaque type de couches et à disposer ces empilages sur deux plateaux (2, 3),
-à saisir, le long d'une ligne, au moins une couche de chaque empilage au moyen de deux ensembles de préhension (7, 8) se déplaçant, chacun au-dessus d'un plateau (2, 3), entre une position basse de préhension des couches et une position haute où les couches saisies sont suspendues au-­dessus des plateaux (2, 3),
- à déplacer un organe de dépose (15) au-­dessus des plateaux (2, 3) à une hauteur intermédiaire entre lesdits plateaux et les ensembles de préhension (7, 8) en position haute, et selon une trajectoire où ledit organe de dépose vient en contact avec les couches saisies en glissant le long de ces dernières jusqu'a une position intermédiaire de leur hauteur,
- et à actionner les ensembles de préhension (7, 8) de façon à relâcher les couches sur l'organe de dépose (15).1 / - Method for pairing at least two flexible layers, in particular a back panel and a front panel of an article such as a T-shirt in the textile and hosiery industry, characterized in that it consists :
- to form a stack of each type of layers and to arrange these stacks on two plates (2, 3),
-to grasp, along a line, at least one layer of each stack by means of two gripping assemblies (7, 8) moving, each above a plate (2, 3), between a position gripping layers and a high position where the gripped layers are suspended above the plates (2, 3),
- moving a depositing member (15) above the plates (2, 3) at an intermediate height between said plates and the gripping assemblies (7, 8) in the high position, and along a trajectory where said depositing member comes into contact with the captured layers by sliding along the latter to an intermediate position of their height,
- And to actuate the gripping assemblies (7, 8) so as to release the layers on the depositing member (15). 2/ - Procédé selon la revendication 1, caractérisé en ce que l'on dispose les empilages sur deux plateaux (2, 3) inclinés et agencés selon un dièdre ouvert avec leur bord inférieur en regard, et en ce que l'on déplace les ensembles de préhension (7, 8) à l'aplomb desdits bords inférieurs.2 / - Method according to claim 1, characterized in that there are the stacks on two plates (2, 3) inclined and arranged in an open dihedral with their lower edge facing, and in that the gripping assemblies (7, 8) perpendicular to said lower edges. 3/ - Procédé selon la revendication 2, caractérisé en ce que l'on maintient les couches sur les plateaux (2, 3), au niveau des bords inférieurs de ces derniers, par une simple pression autorisant le glissement et la saisie de la couche supérieure, et en ce que l'on souffle vers lesdits bords inférieurs un flux d'air dirigé de façon à éliminer les ondulations des couches sous-jacentes de ladite couche saisie.3 / - Method according to claim 2, characterized in that the layers are maintained on the plates (2, 3), at the lower edges of the latter, by a simple pressure allowing the sliding and gripping of the layer upper, and in that one blows towards said lower edges a flow of air directed so as to eliminate the undulations of the underlying layers of said gripped layer. 4/ - Procédé selon l'une des revendications précédentes, caractérisé en ce que l'on saisit les couches au moyen de préhenseurs (8) dotés d'une face de préhension desdites couches et se déplaçant en synchronisme, et en ce que l'on fait pivoter lesdits préhenseurs, en fin de translation ascendante des ensembles de préhension (7, 8), de façon à disposer leur face de préhension en regard et amener les couches saisies sensiblement bord à bord.4 / - Method according to one of claims previous, characterized in that the layers are gripped by means of grippers (8) provided with a gripping face of said layers and moving in synchronism, and in that said grippers are pivoted, at the end of translation ascending of the gripping assemblies (7, 8), so as to have their gripping face facing each other and bringing the gripped layers substantially edge to edge. 5/ - Dispositif d'appairage d'au moins deux couches souples, notamment d'un panneau de dos et d'un panneau de devant d'un article tel qu'un tee-shirt dans l'industrie textile et de la bonneterie, caractérisé en ce qu'il comprend en combinaison :
- deux plateaux (2, 3) dotés de moyens de maintien et de positionnement (5, 6) d'un empilage de couches,
- deux ensembles de préhension (7, 8) associés à des moyens d'actionnement et disposés chacun au-­dessus d'un plateau, lesdits ensembles étant adaptés pour saisir au moins une couche de l'empilage disposé sur ledit plateau et pour relâcher cette couche sur commande,
- des moyens (9, 10, 11) d'entraînement en translation des ensembles de préhension (7. 8) adaptés pour déplacer lesdits ensembles au-dessus des plateaux (2, 3), entre une position basse de préhension des couches et une position haute où ils sont disposés à une hauteur prédéterminée au-dessus desdits plateaux,
- un organe de dépose (15) mobile disposé dans un plan intermédiaire entre les plateaux (2, 3) et les ensembles de préhension (7, 8) en position haute,
- des moyens de déplacement (16, 17) de l'organe de dépose mobile (15) aptes à le déplacer au-dessus des plateaux (2, 3) entre une position, dite escamotée où il est positionné au-dessus d'un plateau et une position dite de dépose où il est positionné au-dessus du second plateau.5 / - Device for pairing at least two flexible layers, in particular a back panel and a front panel of an article such as a T-shirt in the textile and hosiery industry, characterized in that it comprises in combination:
- two plates (2, 3) provided with holding and positioning means (5, 6) of a stack of layers,
- two gripping assemblies (7, 8) associated with actuation means and each arranged above a tray, said assemblies being adapted to grip at least one layer of the stack placed on said tray and to release this custom diaper,
- Means (9, 10, 11) for translational movement of the gripping assemblies (7. 8) adapted to move said assemblies above the plates (2, 3), between a low position for gripping the layers and a high position where they are arranged at a predetermined height above said plates,
a movable depositing member (15) disposed in an intermediate plane between the plates (2, 3) and the gripping assemblies (7, 8) in the high position,
- displacement means (16, 17) of the movable depositing member (15) able to move it above the plates (2, 3) between a position, called retracted where it is positioned above a tray and a so-called removal position where it is positioned above the second tray. 6/ - Dispositif selon la revendication 5, caractérisé en ce que :
- les plateaux (2, 3) sont inclinés et agencés selon un dièdre ouvert, avec leur bord inférieur en regard,
- les moyens (9, 10, 11) d'entraînement en translation des ensembles de préhension (7, 8) sont adaptés pour déplacer lesdits ensembles en synchronisme, sensiblement à l'aplomb des bords inférieurs des plateaux (2, 3).6 / - Device according to claim 5, characterized in that:
- the plates (2, 3) are inclined and arranged according to an open dihedral, with their lower edge facing each other,
- the means (9, 10, 11) for driving translation of the gripping assemblies (7, 8) are adapted to move said assemblies in synchronism, substantially perpendicular to the lower edges of the plates (2, 3). 7/ - Dispositif selon la revendication 6, caractérisé en ce qu'il comprend des moyens de soufflage (18) disposés entre les bords inférieurs des plateaux (2, 3), sensiblement au-dessus de ces derniers, et agencés pour souffler en direction desdits bords inférieurs.7 / - Device according to claim 6, characterized in that it comprises blowing means (18) disposed between the lower edges of the plates (2, 3), substantially above the latter, and arranged to blow in the direction of said lower edges. 8/ - Dispositif selon l'une des revendications 5, 6 ou 7, caractérisé en ce que chaque ensemble de préhension comporte une barre porte-préhenseurs (7) portant au moins deux préhenseurs (8) dotés d'une face de préhension, et des moyens de réglage de la position relative desdits préhenseurs le long de ladite barre porte-préhenseurs adaptés pour ajuster leur écartement en fonction de la largeur des couches.8 / - Device according to one of claims 5, 6 or 7, characterized in that each gripping assembly comprises a gripper holder bar (7) carrying at least two grippers (8) provided with a gripping face, and means for adjusting the relative position of said grippers along said gripper bar adapted to adjust their spacing as a function of the width of the layers. 9/ - Dispositif selon l'une des revendications 5 à 8, caractérisé en ce qu'il comprend des moyens de pivotement (12, 13, 14) des barres porte-préhenseurs (7) autour de leur axe longitudinal, adaptés pour faire pivoter lesdites barres entre une position où les faces de préhension des préhenseurs (8) se trouvent en regard, et une position où lesdites faces de préhension se trouvent en regard des plateaux (2, 3).9 / - Device according to one of claims 5 to 8, characterized in that it comprises pivoting means (12, 13, 14) of the gripper carrier bars (7) around their longitudinal axis, adapted to rotate said bars between a position where the gripping faces of the grippers (8) are opposite, and a position where said gripping faces are opposite the plates (2, 3). 10/ - Dispositif selon la revendication 9, caractérisé en ce que :
- les moyens d'entraînement en translation des ensembles de préhension (7, 8) comprennent un vérin (11) agencé verticalement et doté d'une tige (11a) portant une plaque-support (9) sur laquelle sont fixées, avec un degré de liberté en rotation, les extrémités des barres porte-­préhenseurs (7),
- les moyens de pivotement des barres porte-­préhenseurs (7) comprennent deux câmes (12) solidaires chacune de l'extrémité d'une desdites barres, des moyens élastiques (13) agencés de façon à maintenir lesdits câmes dans une position correspondant à une orientation vers le bas des faces de préhension des préhenseurs (8), et un organe de butée supérieure (14) fixe disposé de façon à entraîner la rotation desdites câmes en fin de remontée des ensembles de préhension (7, 8).10 / - Device according to claim 9, characterized in that:
- The drive means in translation of the gripping assemblies (7, 8) comprise a jack (11) arranged vertically and provided with a rod (11a) carrying a support plate (9) on which are fixed, with a degree freedom of rotation, the ends of the gripper bars (7),
- The pivoting means of the gripper bars (7) comprise two cams (12) each secured to the end of one of said bars, elastic means (13) arranged so as to maintain said cams in a position corresponding to a downward orientation of the gripping faces of the grippers (8), and a fixed upper stop member (14) arranged so as to cause the rotation said cams at the end of the ascent of the gripping assemblies (7, 8). 11/ - Dispositif selon la revendication 6, caractérisé en ce que chaque plateau (2, 3) comporte un tronçon inférieur (2a, 3a) horizontal et un tronçon supérieur (2b, 3b) de grande longueur par rapport au tronçon inférieur, formant un angle sensiblement compris entre 15 et 25 degrés par rapport à l'horizontale.11 / - Device according to claim 6, characterized in that each plate (2, 3) comprises a lower section (2a, 3a) horizontal and an upper section (2b, 3b) of great length relative to the lower section, forming a angle appreciably between 15 and 25 degrees with respect to the horizontal. 12/ - Dispositif selon l'une des revendications 5 à 11, caractérisé en ce que chaque plateau (2, 3) comporte un bord latéral doté d'un flanc de positionnement (4) de l'empilage de couches.12 / - Device according to one of claims 5 to 11, characterized in that each plate (2, 3) has a lateral edge provided with a positioning flank (4) of the stack of layers. 13/ - Dispositif selon les revendications 8 et 10 prises ensemble, caractérisé en ce qu'il comprend une unité centrale programmée pour actionner ledit dispositif selon les séquences suivantes, à partir d'un état où les ensembles de préhension (7, 8) sont en position haute, les faces de préhension des préhenseurs (8) étant en regard, et l'organe de dépose (15) est en position de dépose :
- déplacement de l'organe de dépose (15) vers sa position escamotée,
- descente des ensembles de préhension (7, 8) jusqu'à ce que les faces de préhension des préhenseurs (8) se trouvent en contact avec les empilages de couche, avec rotation en début de descente des barres porte-préhenseurs (7) vers la position correspondant à une orientation vers le bas des faces de préhension des préhenseurs (8),
- remontée des ensembles de préhension (7, 8) vers leur position haute, avec rotation, en fin de remontée, des barres porte-préhenseurs (7) vers la position correspondant à une orientation face à face des faces de préhension des préhenseurs (8),
- déplacement de l'organe de dépose (15) vers sa position de dépose selon une trajectoire où il vient en contact avec les couches saisies en glissant le long de ces dernières,
- actionnement des préhenseurs (8) de façon à déposer les couches saisies sur l'organe de dépose (15).13 / - Device according to claims 8 and 10 taken together, characterized in that it comprises a central unit programmed to actuate said device according to the following sequences, from a state where the gripping assemblies (7, 8) are in the high position, the gripping faces of the grippers (8) facing each other, and the removal member (15) is in the removal position:
- displacement of the depositing member (15) towards its retracted position,
- lowering of the gripping assemblies (7, 8) until the gripping faces of the grippers (8) are in contact with the layer stacks, with rotation at the start of the descent of the gripper bars (7) towards the position corresponding to a downward orientation of the gripping faces of the grippers (8),
- ascent of the gripping assemblies (7, 8) to their high position, with rotation, at the end of ascent, of the gripper bars (7) to the position corresponding to a face-to-face orientation of the gripping faces of the grippers (8 ),
displacement of the deposition member (15) towards its deposition position along a trajectory where it comes into contact with the captured layers by sliding along the latter,
- actuation of the grippers (8) so as to deposit the layers seized on the depositing member (15).
EP89201348A 1988-06-07 1989-05-26 Process and device for picking-up and bringing together from two piles the front and the rear piece of a t-shirt Expired - Lifetime EP0345858B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89201348T ATE78995T1 (en) 1988-06-07 1989-05-26 METHOD AND DEVICE FOR SIMULTANEOUSLY SEPARATING AND BRINGING TOGETHER A BACK AND A FRONT PART OF TWO STACKS FOR MAKING A T-SHIRT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8807957A FR2632164B1 (en) 1988-06-07 1988-06-07 METHOD AND DEVICE FOR PAIRING AT LEAST TWO FLEXIBLE LAYERS, IN PARTICULAR A BACK PANEL AND A FRONT PANEL OF AN ARTICLE SUCH AS A TEE-SHIRT IN THE TEXTILE AND KNITTING INDUSTRY
FR8807957 1988-06-07

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EP0345858A1 true EP0345858A1 (en) 1989-12-13
EP0345858B1 EP0345858B1 (en) 1992-08-05

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EP89201348A Expired - Lifetime EP0345858B1 (en) 1988-06-07 1989-05-26 Process and device for picking-up and bringing together from two piles the front and the rear piece of a t-shirt

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US (1) US4952203A (en)
EP (1) EP0345858B1 (en)
JP (1) JPH0226593A (en)
CN (1) CN1039350A (en)
AT (1) ATE78995T1 (en)
BR (1) BR8902645A (en)
DE (1) DE68902365T2 (en)
ES (1) ES2035527T3 (en)
FR (1) FR2632164B1 (en)

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US5140919A (en) * 1990-07-03 1992-08-25 Bevington Charles E Method for manufacturing tee shirts from tubular blanks including fastening blanks in registry during finishing steps
US5156198A (en) * 1991-02-20 1992-10-20 Hall Gerald L Pump lock fuel system
CN103924433B (en) * 2013-01-15 2017-03-29 赵泓博 Single line parallel docking sutures instrument
CN104746249B (en) * 2015-04-14 2018-05-22 兰宏建 Sewing device
CN109778435B (en) * 2019-03-09 2024-04-02 舒普智能技术股份有限公司 Feeding and blanking mechanism of round collar splicing sewing machine

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GB1253171A (en) * 1970-01-23 1971-11-10
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FR2214293A5 (en) * 1973-01-16 1974-08-09 Bessmann Heiner Sewing article separator feeder - removing symmetrical articles from pairs of stacks and aligning them for sewing
FR2390356A1 (en) * 1977-05-11 1978-12-08 Anvar METHOD AND INSTALLATION OF A LINEAR PROCESSING MACHINE SUCH AS A SEWING MACHINE
GB2007196A (en) * 1977-11-04 1979-05-16 Valton Sa Device for gripping and displaying knitting or woven articles

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FR2632164B1 (en) 1990-09-07
ES2035527T3 (en) 1993-04-16
EP0345858B1 (en) 1992-08-05
ATE78995T1 (en) 1992-08-15
US4952203A (en) 1990-08-28
FR2632164A1 (en) 1989-12-08
DE68902365T2 (en) 1993-03-25
CN1039350A (en) 1990-02-07
DE68902365D1 (en) 1992-09-10
BR8902645A (en) 1990-09-04
JPH0226593A (en) 1990-01-29

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